PMID- 32685351 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240329 IS - 2192-8304 (Print) IS - 2192-8312 (Electronic) IS - 2192-8304 (Linking) VI - 54 IP - 1 DP - 2020 Jul TI - Treatment of infantile neuroaxonal dystrophy with RT001: A di-deuterated ethyl ester of linoleic acid: Report of two cases. PG - 54-60 LID - 10.1002/jmd2.12116 [doi] AB - BACKGROUND: Infantile neuroaxonal dystrophy (INAD) is a rare, autosomal recessive disease due to defects in PLA2G6 and is associated with lipid peroxidation. RT001 is a di-deuterated form of linoleic acid that protects lipids from oxidative damage. METHODS: We evaluated the pharmacokinetics (PK), safety, and effectiveness of RT001 in two subjects with INAD (subject 1: 34 months; subject 2: 10 months). After screening and baseline evaluations, subjects received 1.8 g of RT001 BD. PK analysis and clinical evaluations were made periodically. MAIN FINDINGS: Plasma levels of deuterated linoleic acid (D2-LA), deuterated arachidonic acid (D2-AA), D2-LA to total LA, and D2-AA to total AA ratios were measured. The targeted plasma D2-LA ratio (>20%) was achieved by month 1 and maintained throughout the study. RBC AA-ratios were 0.11 and 0.18 at 6 months for subjects 1 and 2; respectively. No treatment-related adverse events occurred. Limited slowing of disease progression and some return of lost developmental milestones were seen. CONCLUSIONS: Oral RT001 was administered safely in two subjects with INAD. Early findings suggest that the compound was well tolerated, metabolized and incorporated in the RBC membrane. A clinical trial is underway to assess efficacy. CI - (c) 2020 The Authors. Journal of Inherited Metabolic Disease published by John Wiley & Sons Ltd on behalf of SSIEM. FAU - Adams, Darius AU - Adams D AD - Atlantic Health System Goryeb Children's Hospital Morristown New Jersey USA. FAU - Midei, Mark AU - Midei M AUID- ORCID: 0000-0003-3192-2668 AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Dastgir, Jahannaz AU - Dastgir J AD - Atlantic Health System Goryeb Children's Hospital Morristown New Jersey USA. FAU - Flora, Christina AU - Flora C AD - Atlantic Health System Goryeb Children's Hospital Morristown New Jersey USA. FAU - Molinari, Robert J AU - Molinari RJ AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Heerinckx, Frederic AU - Heerinckx F AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Endemann, Sarah AU - Endemann S AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Atwal, Paldeep AU - Atwal P AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Milner, Peter AU - Milner P AD - Clinical Division Retrotope, Inc. Los Altos California USA. FAU - Shchepinov, Mikhail S AU - Shchepinov MS AD - Clinical Division Retrotope, Inc. Los Altos California USA. LA - eng PT - Journal Article DEP - 20200327 PL - United States TA - JIMD Rep JT - JIMD reports JID - 101568557 PMC - PMC7358664 OTO - NOTNLM OT - INAD OT - NBIA OT - PLA2G6 OT - PLAN OT - neurodegeneration COIS- D. A., J. D., and C. F. declare no conflict of interest. P. M., F. H., M. M., P. A., and M. S., are employed by and holds stock in Retrotope. R. M. is a founder and holds stock in Retrotope, Inc. Sarah Endemann is employed by Retrotope. All authors confirm that the content of the article has not been influenced by the sponsor. EDAT- 2020/07/21 06:00 MHDA- 2020/07/21 06:01 PMCR- 2020/03/27 CRDT- 2020/07/21 06:00 PHST- 2019/11/11 00:00 [received] PHST- 2020/03/04 00:00 [revised] PHST- 2020/03/06 00:00 [accepted] PHST- 2020/07/21 06:00 [entrez] PHST- 2020/07/21 06:00 [pubmed] PHST- 2020/07/21 06:01 [medline] PHST- 2020/03/27 00:00 [pmc-release] AID - JMD212116 [pii] AID - 10.1002/jmd2.12116 [doi] PST - epublish SO - JIMD Rep. 2020 Mar 27;54(1):54-60. doi: 10.1002/jmd2.12116. eCollection 2020 Jul.